SATCOM 47

From Memory Alpha, the free Star Trek reference.

SATCOM 47 was a communications satellite in Earth orbit owned by Henry Starling and his company Chronowerx in the 20th century.

In 1996 when Henry Starling was apprehended by the crew of the USS Voyager, Starling was liberated by his assistant, Mr. Dunbar, who used SATCOM 47 to both scan for his presence and to relay a transporter signal which penetrated Voyager's shields. (VOY: "Future's End")